added Resource building

by building resource building, it allows resources be gained over time

also I’ve placed all canvas’s into a ‘side panel’ game object and each
set of canvas are split by tags so for barracks canvas buttons, they
will have ‘barracksGUI’ tag and HQ will have ‘HQGUI’ etc… and each
canvas group will be shown if an int is specific to them… check
PlayerManager2 script